@perkri , you think I can do that here? This involves having an education in biochemistry and neuroanatomy before you even get close to understanding neurophysiology which is different for each sensory system and motor activity.
Get yourself a comprehensive medical education. Like the one I have. In the meanwhile you will have to settle for being ignorant. I promise you that your audio memory is extremely short. Although there is some variation, particularly in people that have been blind since childhood, this is a proven fact. Blind people can reassign the visual cortex to audio function. The visual cortex is about twenty times the size of the area assigned to hearing. What you get is people like Stevie Wonder.